Is Blockchain Changing Accounting? What Finance Teams Need to Know

Introduction

Blockchain has attracted more hype — and more scepticism — than almost any technology of the past decade. For finance professionals, cutting through both to understand what is actually changing is a practical necessity. Because something genuinely is changing. And the finance teams that understand it early will be better positioned to contribute, advise, and lead.

This article takes a balanced look at how blockchain is reshaping accounting and finance — focusing on the use cases that are genuinely transformative for 2025 and beyond, not the speculative or headline-grabbing ones.

What is Blockchain, in Plain Terms?

A blockchain is a distributed ledger — a database that is shared and synchronised across multiple participants, where records are grouped into "blocks" and linked cryptographically in a "chain." The key properties that matter for accounting are:

• Immutability: Once a record is written to the blockchain, it is extremely difficult to alter — providing a tamper-resistant audit trail
• Transparency: All participants in a permissioned blockchain (or the public in the case of public blockchains) can view the ledger
• Programmability: Smart contracts can automate transactions when predefined conditions are met
• Decentralisation: No single entity controls the ledger — eliminating single points of failure and reducing counterparty risk

Genuinely Transformative Use Cases

1. Automated Reconciliation via Smart Contracts

Inter-company reconciliation and multi-party settlement are among the most time-consuming tasks in corporate finance. Blockchain-based smart contracts can automate large parts of this process by executing settlement automatically when conditions are verified on-chain.

Several major banks and corporates are already using permissioned blockchain networks (built on Hyperledger Fabric or R3 Corda) for real-time interbank settlement, trade finance, and supply chain payment automation. For finance teams in large organisations, the practical implication is that reconciliation processes that currently take days may increasingly happen in seconds — but this requires investment in systems integration and process redesign.

2. Real-Time and Continuous Auditing

Traditional audit is retrospective — auditors examine records after the period has ended. Blockchain creates the conditions for continuous auditing: because transactions are written to an immutable shared ledger in real time, auditors can in principle monitor controls and test transactions continuously rather than sampling retrospectively.

The Big Four accounting firms have all invested in blockchain audit tools. KPMG, Deloitte, PwC and EY have all developed or partnered on platforms that use blockchain transaction data to enhance audit quality and efficiency. This does not eliminate the auditor's judgement — it changes where that judgement is applied, from data gathering to analysis and interpretation.

3. Tokenised Assets and the Finance Function

Asset tokenisation — representing real-world assets (real estate, bonds, infrastructure, commodities) as digital tokens on a blockchain — is moving from experiment to mainstream. BlackRock, JPMorgan, and several sovereign wealth funds have tokenised significant asset portfolios.

For finance teams, this creates new accounting and valuation challenges. Tokenised assets may need to be accounted for as financial instruments, intangibles, or under specific frameworks depending on their structure. Fractional ownership through tokenisation also raises questions about consolidation, control, and significant influence under IFRS 10 and IAS 28.

4. Supply Chain Transparency and ESG Reporting

Blockchain is being used to create verifiable supply chain records — tracking the provenance of goods from raw material to end consumer. For finance teams responsible for ESG reporting under CSRD or TCFD, this matters because blockchain-verified supply chain data can support Scope 3 emissions calculations and ethical sourcing claims that would otherwise rely on third-party attestations.

5. Accounts Payable and Receivable Automation

DeFi-inspired programmable payment systems — while not yet mainstream in corporate finance — point to a future where payment terms are encoded in smart contracts and executed automatically on delivery confirmation. Proof-of-concept projects in trade finance (HSBC, Standard Chartered) have demonstrated significant efficiency gains. Finance teams should expect this to become relevant within the next five to ten years in sectors with complex multi-party supply chains.

Where the Hype Outpaces Reality

Not every blockchain application lives up to its promise. Areas where scepticism is warranted:

• Public blockchain for corporate accounting: Most serious enterprise applications use permissioned blockchains, not public chains. The volatility, scalability issues, and regulatory uncertainty of public chains make them unsuitable for most corporate finance applications
• Blockchain as a database replacement: Blockchain is not inherently better than a well-governed traditional database for most accounting applications. The benefit comes specifically from multi-party scenarios requiring a shared, trusted ledger
• NFTs for corporate asset registries: The enthusiasm for NFT-based asset registries in 2021-22 has cooled significantly, and for good reason — the legal status of NFT ownership is unresolved in most jurisdictions

What Finance Teams Should Do Now

1. Understand the basics: You do not need to be a developer, but you should understand what blockchain is and is not, what permissioned versus public chains mean, and how smart contracts work in principle
2. Monitor your sector: Blockchain adoption is uneven across industries. Trade finance, financial services, and supply chain-intensive sectors are ahead. Know where your sector stands.
3. Engage with your IT and operations teams: Blockchain implementations are not finance projects alone — they require systems integration, legal review, and change management. Finance should be at the table from the start
4. Update your CPD: The intersection of technology and accounting is a growing CPD priority. Professional bodies are increasingly expecting finance professionals to demonstrate technology competence

Stay Ahead with Learnsignal CPD

The finance professionals who will thrive in the next decade are those who combine deep technical accounting knowledge with genuine technology fluency. Learnsignal's CPD courses cover technology in finance — including blockchain, digital assets, and the tools reshaping the profession. Explore our CPD library and invest in the knowledge that will keep you relevant and effective.